English, asked by monikaaswal3607, 2 months ago

SCHEMATIC REPORT ABOUT CAUSES AND WAYS TO PREVENT COVID 19

Answers

Answered by sewalipatirregon1986

Answer:

The older human coronaviruses were first identified in the mid-1960s, but have likely circulated in humans for centuries. These include 229E (alpha coronavirus), NL63 (alpha coronavirus), OC43 (beta coronavirus) and HKU1 (beta coronavirus)

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